2019 What an amazing year for ACLS, 1257 Challenger MKII installations and a further 879 supply only units. We would like to extend a massive thank you to all our new clients for their business and support, not to mention the many many kind words received.

Our exclusive Challenger MKII diesel forced air heater can and will heat the average motorhome to 24 degrees in roughly 5 - 6 minutes. Can your existing lpg Truma do that? Can it do it while you drive? Challenger can! Ask your rear traveling passengers just how cold in can be back there.

HEATER SIZES - What is best?

2kw - Small to medium sized vehicle / boat

4kw - Medium / large sized vehicle - best all round performer both small, med and large vehicle / boat.

Brian JohnstonThanks to ACLS engineer for fitting there challenger 4 kWh diesel air heating to my motorhome today he did a first class job he explained every thing you need to know how to work the heating system i would recommend ACLS from ordering to the fitting if you want a diesel air heating for your motorhome or caravan call ACLS thanks again Brian

Tommy Christie Great job had it running for two hours toasting going to have a lot of fun during the winter 35 degrees if I want highly recommend !!!!

John HerriotThank you for your time,banter and a superb job,After you left I filled up with fuel and food and on my way to try it up at loch Rannoch 👍👍👍

Bob Bertram Many thanks for today Steve Top quality fit out and professional service . Looking forward to using the campervan through the winter months now on snowboarding trips in Scotland with that cosy 4kw heater . All the best to ACLS team .

Darren Waite I would just like to say a massive thank you to Steve for travelling all this way down to Huddersfield to fit our new 4kw diesel heater ready for our trip to Austria, a clean and professional fit out and so happy to recommend to others, thanks again Steve

Bernard Greedy I had mine fitted 2 weeks ago and just love it !! Make lots of cups of coffee for the lad who fits it !! He has time to talk to you if you need to ask any questions he will answer them fully !!